IWR1642: IWR1642 vs IWR1443

Alexandre Cherpillod

Intellectual 425 points

Part Number: IWR1642
Other Parts Discussed in Thread: IWR1443, , , IWR1443BOOST

Hi,
What is the most suited component (IWR1642 or IWR1443) for each of the following task:

Send (e.g. through SPI or I2C) the range and angles of the 10 closest point.
Send (e.g. through SPI or I2C) the position (relative to the sensor) of all the detected points.
Do an iterative closest point (ICP) between each pointcloud of each frame and send the resulting rotation and translation (e.g. through SPI or I2C).

Many thanks,
Alex

over 7 years ago

0 Akash Gondalia over 7 years ago

TI__Guru 50240 points

Hi Alexandre,

Both IWR1642 and IWR1443 will be well-suited for the first two tasks.

The third task is more suited for IWR1642 since the on-board DSP will enable enhanced signal processing of your particular point cloud.

Cheers,
Akash

0 Alexandre Cherpillod over 7 years ago in reply to Akash Gondalia

Intellectual 425 points

Hi Akash,

I was watching this demo video about SLAM using the IWR1443.
What is the hardware configuration of this demo ? Is the IWR1642BOOST EVM board directly plugged to the computer ?
If yes, then is it right to say that the ROS messages containing the whole pointclouds of the sensor frame are passed through UART ? What is the maximal frame rate which can be obtained using this solution ?
Is it possible to passe this pointcloud through SPI (it should be faster) to a companion computer? What would be the max frame rate using SPI ?

0 Akash Gondalia over 7 years ago in reply to Alexandre Cherpillod

TI__Guru 50240 points

Hi Alexandre,

All of the Autonomous Robotics with ROS lab files are available for download here on the TI Resource Explorer: dev.ti.com/.../

Please note that it is only for IWR1443BOOST.

Cheers,
Akash

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IWR1642: IWR1642 vs IWR1443